#define _CRT_SECURE_NO_WARNINGS
#define N 6
#include<stdio.h>
#include<assert.h>
char* My_strcpy(char* arr2, const char* arr1)
{
    char* ret=arr2;
	assert(arr1);
	assert(arr2);
	while ((*(arr2)++) = (*(arr1)++))
	{
		;
	}
	return ret;
}
int main()
{
	char arr1[N] = "hello";
	char arr2[N + 1]={0};
  //strcpy(arr2,arr1);
	My_strcpy(arr2, arr1);
	printf("%s\n", arr2);
	return 0;
}